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My teacher wants me to solve 10 * 10 how do you do it

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?

Finding tbe values of the variables in each kite

Mis the midpoint of rq if rm equals 2x + 5 and mq equals 4x - 9 what is the length of rq